104.5% is the change from 200 to 409
Calculation steps:
[( 409 - 200 ) ÷ 200] x 100 = 104.5%
Formula
Percentage change = [(409 - 200) / 200] x 100
Subtract the new number by the original number
409 - 200 = 209
209 ÷ 200 = 1.045
1.045 x 100 = 104.5%
Example